CN200993938Y - Constant magnetic retaining AC contactor - Google Patents
Constant magnetic retaining AC contactor Download PDFInfo
- Publication number
- CN200993938Y CN200993938Y CN 200620164883 CN200620164883U CN200993938Y CN 200993938 Y CN200993938 Y CN 200993938Y CN 200620164883 CN200620164883 CN 200620164883 CN 200620164883 U CN200620164883 U CN 200620164883U CN 200993938 Y CN200993938 Y CN 200993938Y
- Authority
- CN
- China
- Prior art keywords
- contactor
- alternating current
- current contactor
- control coil
- permanent magnet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model relates to a permanent magnetism retaining alternating current contactor, which is used for controlling the power supply of an electric power system (e.g. machine tool, motor). The technical character is: one end of a concave form magnetizer 3 is winded by a control coil 4. A permanent magnet 5 is adopted as a central flute of the concave form magnetizer 3. The opening of the concave form magnetizer 3 is provided with an armature 2, which is interlocked with a contact 1, to join with a spring 6. A direct current power supply and an energy storing unit 7, and a power failure detecting and controlling unit 8, which used for ensuring to close down the working state of the alternating current contactor when the power is off, are arranged in the circuit of the control coil 4. The beneficial effect is: through the improved design to the existing alternating current contactor, the retaining of the contact of the alternating current contactor is carried out by the permanent magnet instead of the electromagnet. The status control is carried out by the instantaneously electrified control coil only when the switching state of the alternating current contactor is changed. Therefore, the energy consumption of ht alternating current contactor can be greatly reduced, and the energy saving purpose is so to achieve.
Description
Technical field
The utility model relates to a kind of constant-magnet remaining AC contactor, is used for the power supply control of electric power system (as lathe, motor).
Background technology
At present, more the A.C. contactor of the power supply control usefulness of using both at home and abroad adopts solenoid to carry out the contact and keeps.Control coil remains "on" position when the A.C. contactor on-state.This means solenoid in order to guarantee the on-state of ac contactor contact, just must keep the state of switching on always,, increased the energy consumption of A.C. contactor promptly always at consumed energy.The consumed power of solenoid is several watts to tens watts with the unusual of A.C. contactor power, the A.C. contactor of a large amount of power supply control usefulness that exist and use, the maintenance that electromagnet wherein carries out ac contactor contact will all consume a large amount of electric energy every day, causes the waste of the energy.
The utility model content
The technical problem that solves
For fear of the deficiencies in the prior art part, the utility model proposes a kind of constant-magnet remaining AC contactor, substitute electromagnet with permanent magnet and carry out the maintenance of ac contactor contact, only instantaneous energising completion status control when the A.C. contactor on off operating mode changes of control coil.
Technical scheme
Technical characterictic of the present utility model is: the end at matrix magnetic conductor 3 is wound with control coil 4, one section permanent magnet 5 is adopted in the position of the central recess of matrix magnetic conductor 3, armature 2 of aperture position design of matrix magnetic conductor 3, be connected with spring 6, armature 2 connecting terminals 1, and interlock with it.
The DC power supply and energy-storage units 7 and the power failure Detection ﹠ Controling unit 8 that guarantee when having a power failure, in time to disconnect the A.C. contactor operating state have been designed in described control coil 4 circuit.
Beneficial effect
The utility model proposes a kind of constant-magnet remaining AC contactor, by improvement design to existing A.C. contactor, substitute electromagnet with permanent magnet and carry out the maintenance of ac contactor contact, only instantaneous energising completion status control when the A.C. contactor on off operating mode changes of control coil, can significantly reduce the energy consumption of A.C. contactor, reach purpose of energy saving.
Description of drawings
Fig. 1: constant-magnet remaining AC contactor structure chart
The 1-contact, 2-armature, 3-magnetic conductor, 4-control coil, 5-permanent magnet, 6-spring, 7-DC power supply and energy-storage units, 8-power failure Detection ﹠ Controling unit
Embodiment
Now in conjunction with the accompanying drawings the utility model is further described:
Design has a control coil 4 on magnetic conductor 3, can be according to the design power of the power selection coil of A.C. contactor, and the coiling of coil can be selected the notice enamelled wire for use; Certain part of magnetic conductor 3 adopts one section permanent magnet 5, and permanent magnet can be selected the strong rare earth magnetic steel of anti-demagnetization capability, as rubidium iron boron etc.; Armature 2 of the aperture position of magnetic conductor 3 design is connected with spring 6, and the magnetic circuit by elastic force holding armature 2 and magnetic conductor 3 is closure state not, armature 2 connecting terminals 1, and link with it; Magnetic conductor 3 and armature 2 can be selected general silicon steel permeability magnetic material for use.
The DC power supply and energy-storage units 7 and the power failure Detection ﹠ Controling unit 8 that guarantee when having a power failure, in time to disconnect the A.C. contactor operating state in control coil 4 circuit, have been designed.
When A.C. contactor is operated in off-state and since air gap have a permanent magnet magnetic force F
Magnetic 1Pretightning force F less than spring
Bullet 1, this kind state lower spring is made every effort to overcome the effect of clothes permanent magnet magnetic force, makes the contact switch of A.C. contactor remain on off-state.
When connecting the normally open K switch
1The time, solenoid 4 produce one with the identical unidirectional magnetic field of permanent magnet 5 directions, the electromagnetic force F of generation this moment
, work as F
Magnetic 1+ F
＞F
Bullet 1, armature 2 setting in motions are until the magnetic circuit closure, and the contact of A.C. contactor also is closed under the effect of armature.Even disconnect K this moment
1, as long as satisfy: F
Magnetic 2＞F
Bullet 2, i.e. permanent magnet the suction-combining force F under the magnetic circuit closure state
Magnetic 2As long as the elastic force F when stretching greater than spring 6
Bullet 2, just can under permanent magnet 5 effects, make A.C. contactor be operated in on-state.
When needs disconnect the operating state of A.C. contactor, only need to connect normally open K2, this moment solenoid 4 produce one with the opposite unidirectional magnetic field of permanent magnet 5 directions, this moment, the electromagnetic force of generation was F
Electricity is anti-, work as F
Magnetic 1-F
Electricity is anti-＜F
Bullet 1The time armature setting in motion under the effect of spring force, be operated in off-state until reaching A.C. contactor.
In addition, also comprise DC voltage-stabilizing, energy storage, power-fail detection circuit in the auxiliary control circuit, to guarantee when having a power failure, in time to disconnect the operating state of A.C. contactor, with the operating state of assurance energy-saving alternating current contactor and the consistency of common A.C. contactor operating state.
Claims (2)
1. constant-magnet remaining AC contactor, it is characterized in that: the end at matrix magnetic conductor (3) is wound with control coil (4), one section permanent magnet (5) is adopted in the position of the central recess of matrix magnetic conductor (3), an aperture position design armature (2) of matrix magnetic conductor (3), be connected with spring (6), armature (2) connecting terminal (1), and interlock with it.
2. constant-magnet remaining AC contactor according to claim 1 is characterized in that: designed the DC power supply and energy-storage units (7) and the power failure Detection ﹠ Controling unit (8) that guarantee in time to disconnect the A.C. contactor operating state when having a power failure in described control coil (4) circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620164883 CN200993938Y (en) | 2006-12-29 | 2006-12-29 | Constant magnetic retaining AC contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620164883 CN200993938Y (en) | 2006-12-29 | 2006-12-29 | Constant magnetic retaining AC contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200993938Y true CN200993938Y (en) | 2007-12-19 |
Family
ID=38947010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620164883 Expired - Fee Related CN200993938Y (en) | 2006-12-29 | 2006-12-29 | Constant magnetic retaining AC contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200993938Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104347317A (en) * | 2013-08-09 | 2015-02-11 | 欧姆龙株式会社 | CONTACT MECHANISM AND ELECTROMAGNETIC RELAY using same |
| CN106898524A (en) * | 2015-12-18 | 2017-06-27 | 秦永振 | A kind of automatically reset relay of new dead electricity |
-
2006
- 2006-12-29 CN CN 200620164883 patent/CN200993938Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104347317A (en) * | 2013-08-09 | 2015-02-11 | 欧姆龙株式会社 | CONTACT MECHANISM AND ELECTROMAGNETIC RELAY using same |
| CN106898524A (en) * | 2015-12-18 | 2017-06-27 | 秦永振 | A kind of automatically reset relay of new dead electricity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071219 Termination date: 20100129 |